SoftmaxGrad Tiling

Function Usage

Obtains the SoftmaxGrad tiling parameter.

Prototype

APIs for obtaining the minimum and maximum temporary space required for kernel computation

uint32_t GetSoftMaxGradMaxTmpSize(const ge::Shape& srcShape, const uint32_t dataTypeSize, const bool isFront, const bool isReuseSource)

uint32_t GetSoftMaxGradMinTmpSize(const ge::Shape& srcShape, const uint32_t dataTypeSize, const bool isFront, const bool isReuseSource)

Tiling computation APIs

Computation API in the AscendC::optiling namespace

void SoftMaxGradTilingFunc(const ge::Shape& srcShape, const uint32_t dataTypeSize, const uint32_t localWorkSpaceSize, optiling::SoftMaxTiling& softmaxGradTiling, const bool isFront = false)

Computation API in the AscendC namespace

void SoftMaxGradTilingFunc(const ge::Shape& srcShape, const uint32_t dataTypeSize, const uint32_t localWorkSpaceSize, AscendC::tiling::SoftMaxTiling& softmaxGradTiling, const bool isFront = false)

Parameters

**Table 1** SoftmaxGrad GetSoftMaxGradMaxTmpSize/GetSoftMaxGradMinTmpSize parameters
API	Input/Output	Function
srcShape	Input	Input shape of srcTensor.
dataTypeSize	Input	Data type for computation, for example, half = 2.
isFront	Input	Whether to compute $\text{[math]}$ only. The value is the same as that of SoftmaxGrad in the kernel. The default value is false.
isReuseSource	Input	The value must be the same as the API configuration in the kernel.

**Table 2** SoftmaxGrad SoftMaxGradTilingFunc parameters
API	Input/Output	Function
srcShape	Input	Input shape of srcTensor.
localWorkSpaceSize	Input	Size of the remaining temporary space that can be used for SoftmaxGrad computation. The unit is byte. The value of localWorkSpaceSize must be greater than the minimum temporary space size required for computation by the GetSoftMaxGradMinTmpSize API.
dataTypeSize	Input	Data type for computation, for example, half = 2.
isFront	Input	Whether to compute $\text{[math]}$ only. The value is the same as that of SoftmaxGrad in the kernel. The default value is false.
softmaxGradTiling	Output	Tiling information required by the SoftmaxGrad APIs. The input parameters in the optiling::SoftMaxTiling and AscendC::tiling::SoftMaxTiling formats are supported.

Returns

GetSoftMaxGradMinTmpSize returns the minimum size (in byte) of the temporary space required for SoftmaxGrad computation.

GetSoftMaxGradMaxTmpSize returns the maximum size (in byte) of the temporary space required for SoftmaxGrad computation.

Restrictions

None

Parent topic: SoftMax APIs